WaveSurfer.js for Next.js

This is a tutorial app that demonstrates how to implement the wavesurfer.js library in a Next.js application. The app provides a step-by-step guide on how to set up and use the wavesurfer library, including how to integrate it with React hooks and handle different events. The app also provides a working example of how to display and control audio waveforms within a Next.js application.

Getting Started

1. Clone this repository and run npm install or yarn install to install the required dependencies.
2. Start the development server by running npm run dev or yarn dev.
3. Open http://localhost:3000 in your browser to see the application.

How it works

The application uses the useRef hook to create a reference to the "waveform" div element, which is used as the container for the waveform visualization. The create function is used to import the "wavesurfer.js" library and create an instance of the "WaveSurfer" class, passing in the "waveform" div element as the container. The load method is called on the "wavesurfer" object to load the audio file from the specified URL.

The handlePlayPause function is used to toggle the playing state of the audio, and it calls the playPause method on the "wavesurfer" object to start or pause the playback. The useEffect hook is used to call the create function when the component is first rendered and to clean up the "wavesurfer" object when the component is unmounted.

It is using a css-in-js library and some svg components are used for the UI design. The audio file is hardcoded in the url variable and it's not dynamic.

Note

The project is using a hardcoded audio file for demonstration, you can easily change the audio file by replacing the url variable in the component.

Dependencies

• next.js
• wavesurfer.js